| paul@48 | 1 | #!/usr/bin/env python |
| paul@48 | 2 | |
| paul@48 | 3 | """ |
| paul@48 | 4 | Interpretation and preparation of iMIP content, together with a content handling |
| paul@48 | 5 | mechanism employed by specific recipients. |
| paul@146 | 6 | |
| paul@146 | 7 | Copyright (C) 2014, 2015 Paul Boddie <paul@boddie.org.uk> |
| paul@146 | 8 | |
| paul@146 | 9 | This program is free software; you can redistribute it and/or modify it under |
| paul@146 | 10 | the terms of the GNU General Public License as published by the Free Software |
| paul@146 | 11 | Foundation; either version 3 of the License, or (at your option) any later |
| paul@146 | 12 | version. |
| paul@146 | 13 | |
| paul@146 | 14 | This program is distributed in the hope that it will be useful, but WITHOUT |
| paul@146 | 15 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
| paul@146 | 16 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for more |
| paul@146 | 17 | details. |
| paul@146 | 18 | |
| paul@146 | 19 | You should have received a copy of the GNU General Public License along with |
| paul@146 | 20 | this program. If not, see <http://www.gnu.org/licenses/>. |
| paul@48 | 21 | """ |
| paul@48 | 22 | |
| paul@418 | 23 | from imiptools.data import Object, parse_object, get_value |
| paul@48 | 24 | |
| paul@48 | 25 | try: |
| paul@48 | 26 | from cStringIO import StringIO |
| paul@48 | 27 | except ImportError: |
| paul@48 | 28 | from StringIO import StringIO |
| paul@48 | 29 | |
| paul@48 | 30 | # Handler mechanism objects. |
| paul@48 | 31 | |
| paul@224 | 32 | def handle_itip_part(part, handlers): |
| paul@48 | 33 | |
| paul@48 | 34 | """ |
| paul@227 | 35 | Handle the given iTIP 'part' using the given 'handlers' dictionary. |
| paul@224 | 36 | |
| paul@224 | 37 | Return a list of responses, each response being a tuple of the form |
| paul@224 | 38 | (outgoing-recipients, message-part). |
| paul@48 | 39 | """ |
| paul@48 | 40 | |
| paul@48 | 41 | method = part.get_param("method") |
| paul@48 | 42 | |
| paul@48 | 43 | # Decode the data and parse it. |
| paul@48 | 44 | |
| paul@48 | 45 | f = StringIO(part.get_payload(decode=True)) |
| paul@48 | 46 | |
| paul@48 | 47 | itip = parse_object(f, part.get_content_charset(), "VCALENDAR") |
| paul@48 | 48 | |
| paul@48 | 49 | # Ignore the part if not a calendar object. |
| paul@48 | 50 | |
| paul@48 | 51 | if not itip: |
| paul@228 | 52 | return |
| paul@48 | 53 | |
| paul@48 | 54 | # Require consistency between declared and employed methods. |
| paul@48 | 55 | |
| paul@48 | 56 | if get_value(itip, "METHOD") == method: |
| paul@48 | 57 | |
| paul@48 | 58 | # Look for different kinds of sections. |
| paul@48 | 59 | |
| paul@60 | 60 | all_results = [] |
| paul@48 | 61 | |
| paul@226 | 62 | for name, items in itip.items(): |
| paul@226 | 63 | |
| paul@226 | 64 | # Get a handler for the given section. |
| paul@226 | 65 | |
| paul@226 | 66 | handler = handlers.get(name) |
| paul@226 | 67 | if not handler: |
| paul@226 | 68 | continue |
| paul@226 | 69 | |
| paul@226 | 70 | for item in items: |
| paul@48 | 71 | |
| paul@48 | 72 | # Dispatch to a handler and obtain any response. |
| paul@48 | 73 | |
| paul@226 | 74 | handler.set_object(Object({name : item})) |
| paul@228 | 75 | methods[method](handler)() |
| paul@48 | 76 | |
| paul@48 | 77 | # Handler registry. |
| paul@48 | 78 | |
| paul@48 | 79 | methods = { |
| paul@48 | 80 | "ADD" : lambda handler: handler.add, |
| paul@48 | 81 | "CANCEL" : lambda handler: handler.cancel, |
| paul@48 | 82 | "COUNTER" : lambda handler: handler.counter, |
| paul@48 | 83 | "DECLINECOUNTER" : lambda handler: handler.declinecounter, |
| paul@48 | 84 | "PUBLISH" : lambda handler: handler.publish, |
| paul@48 | 85 | "REFRESH" : lambda handler: handler.refresh, |
| paul@48 | 86 | "REPLY" : lambda handler: handler.reply, |
| paul@48 | 87 | "REQUEST" : lambda handler: handler.request, |
| paul@48 | 88 | } |
| paul@48 | 89 | |
| paul@48 | 90 | # vim: tabstop=4 expandtab shiftwidth=4 |
